This master set was developed to be the most extensive and professional (8) piece blind hole bushing and bearing puller set ever assembled. All pieces of this master kit have their own compartment within a storage case. Contents: 1) slide hammer shaft length with T handle (15.5), 1) hammer weight (2.15lbs with a length of 4), 8) collets 8~10 (5/16~13/32), 10~12 (13/32~15/32), 12~14(15/32~9/16), 15~17(19/32~11/16), 17~20(11/16~25/32), 20~24(25/32~15/16), 25~29(1~1 1/8), 30~32(1 3/16~1 1/4).